ARM: kirkwood: Add LS-XHL and LS-CHLv2 support

Add support for Buffalo Linkstation LS-XHL and LS-CHLv2 using the device
tree where possible.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>

1 files changed, 135 insertions, 0 deletions

diff --git a/arch/arm/mach-kirkwood/board-lsxl.c b/arch/arm/mach-kirkwood/board-lsxl.c
new file mode 100644
index 000000000000..83d8975592f8
--- /dev/null
+++ b/arch/arm/mach-kirkwood/board-lsxl.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2012 (C), Michael Walle <michael@walle.cc>
+ *
+ * arch/arm/mach-kirkwood/board-lsxl.c
+ *
+ * Buffalo Linkstation LS-XHL and LS-CHLv2 init for drivers not
+ * converted to flattened device tree yet.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/partitions.h>
+#include <linux/ata_platform.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/spi.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/gpio.h>
+#include <linux/gpio-fan.h>
+#include <linux/input.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/kirkwood.h>
+#include "common.h"
+#include "mpp.h"
+
+static struct mv643xx_eth_platform_data lsxl_ge00_data = {
+        .phy_addr       = MV643XX_ETH_PHY_ADDR(0),
+};
+
+static struct mv643xx_eth_platform_data lsxl_ge01_data = {
+        .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
+};
+
+static unsigned int lsxl_mpp_config[] __initdata = {
+        MPP10_GPO,      /* HDD Power Enable */
+        MPP11_GPIO,     /* USB Vbus Enable */
+        MPP18_GPO,      /* FAN High Enable# */
+        MPP19_GPO,      /* FAN Low Enable# */
+        MPP36_GPIO,     /* Function Blue LED */
+        MPP37_GPIO,     /* Alarm LED */
+        MPP38_GPIO,     /* Info LED */
+        MPP39_GPIO,     /* Power LED */
+        MPP40_GPIO,     /* Fan Lock */
+        MPP41_GPIO,     /* Function Button */
+        MPP42_GPIO,     /* Power Switch */
+        MPP43_GPIO,     /* Power Auto Switch */
+        MPP48_GPIO,     /* Function Red LED */
+        0
+};
+
+#define LSXL_GPIO_FAN_HIGH      18
+#define LSXL_GPIO_FAN_LOW       19
+#define LSXL_GPIO_FAN_LOCK      40
+
+static struct gpio_fan_alarm lsxl_alarm = {
+        .gpio = LSXL_GPIO_FAN_LOCK,
+};
+
+static struct gpio_fan_speed lsxl_speeds[] = {
+        {
+                .rpm = 0,
+                .ctrl_val = 3,
+        }, {
+                .rpm = 1500,
+                .ctrl_val = 1,
+        }, {
+                .rpm = 3250,
+                .ctrl_val = 2,
+        }, {
+                .rpm = 5000,
+                .ctrl_val = 0,
+        }
+};
+
+static int lsxl_gpio_list[] = {
+        LSXL_GPIO_FAN_HIGH, LSXL_GPIO_FAN_LOW,
+};
+
+static struct gpio_fan_platform_data lsxl_fan_data = {
+        .num_ctrl = ARRAY_SIZE(lsxl_gpio_list),
+        .ctrl = lsxl_gpio_list,
+        .alarm = &lsxl_alarm,
+        .num_speed = ARRAY_SIZE(lsxl_speeds),
+        .speed = lsxl_speeds,
+};
+
+static struct platform_device lsxl_fan_device = {
+        .name = "gpio-fan",
+        .id = -1,
+        .num_resources = 0,
+        .dev = {
+                .platform_data = &lsxl_fan_data,
+        },
+};
+
+/*
+ * On the LS-XHL/LS-CHLv2, the shutdown process is following:
+ * - Userland monitors key events until the power switch goes to off position
+ * - The board reboots
+ * - U-boot starts and goes into an idle mode waiting for the user
+ *   to move the switch to ON position
+ *
+ */
+static void lsxl_power_off(void)
+{
+        kirkwood_restart('h', NULL);
+}
+
+#define LSXL_GPIO_HDD_POWER 10
+#define LSXL_GPIO_USB_POWER 11
+
+void __init lsxl_init(void)
+{
+        /*
+         * Basic setup. Needs to be called early.
+         */
+        kirkwood_mpp_conf(lsxl_mpp_config);
+
+        /* usb and sata power on */
+        gpio_set_value(LSXL_GPIO_USB_POWER, 1);
+        gpio_set_value(LSXL_GPIO_HDD_POWER, 1);
+
+        kirkwood_ehci_init();
+        kirkwood_ge00_init(&lsxl_ge00_data);
+        kirkwood_ge01_init(&lsxl_ge01_data);
+        platform_device_register(&lsxl_fan_device);
+
+        /* register power-off method */
+        pm_power_off = lsxl_power_off;
+}